Flame retardant blends of polycarbonate, ABS and a polyalkylmethacrylate having increased weld line strength
AssigneeGeneral Electric Company
InventorsSatish K. Gaggar, James J. Ziegelmeyer
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Abstract
Flame retardant polymer blend compositions exhibiting increased weld line strength comprise a polycarbonate polymer, an ABS resin, a phosphate flame retardant compound and a polyalkylmethacrylate. Preferred polyalkylmethacrylates comprise polymethylmethacrylate homopolymer and copolymers thereof with at least one C.sub.l -C.sub.4 alkyl acrylate.
Claims14
A polymer blend composition, comprising a polycarbonate polymer, an ABS resin, a phosphate flame retardant compound and a polyalkylmethacrylate homopolymer.
A polymer blend composition comprising from about 65 to about 85 weight percent of a polycarbonate polymer, from about 5 to about 20 weight percent of a ABS resin, from about 5 to about 15 weight percent of a phosphate flame retardant compound, and from about 5 to about 20 weight percent of a polymethylmethacrylate polymer selected from the group consisting of polymethylmethacrylate homopolymers and polymethylmethacrylate copolymers containing not more than about 30 weight percent of one or more C.sub.1 -C.sub.4 alkyl acrylates.
Dependencies are inferred from the claim text.